S-91655A245 Length 3/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in industrial environments
• Efficient thread forming design creates strong, permanent threads in sheet metal without requiring pre-tapped holes
• Enhanced driving stability with No. 2 square drive that resists cam-out and provides maximum torque transfer
• Distributed load bearing through the flanged pan head design that prevents pull-through and improves clamping force
• Quick penetration and alignment with pointed tip design that facilitates easy starting and precise screw placement
• Full-thread engagement along the entire 3/4" length ensures maximum holding power in sheet metal applications
• Regulatory compliance assurance with RoHS 3 and REACH standards for safe use in regulated industries

Professional Applications & Engineering Value

These No. 10-12 thread forming tapping screws are specifically engineered to address common challenges in sheet metal fabrication and assembly. The zinc-plated steel construction provides essential corrosion protection while maintaining the high tensile strength required for structural integrity. The A/AB thread forming design eliminates the need for time-consuming tapping operations, as the screws create their own mating threads through cold forming action. This results in superior vibration resistance and prevents loosening under dynamic loads. The flanged pan head with No. 2 square drive offers excellent torque transmission while distributing clamping force over a wider surface area, preventing material deformation in thin-gauge sheet metal. These features collectively reduce installation time, minimize assembly costs, and ensure reliable performance in HVAC systems, electrical enclosures, automotive components, and industrial equipment where sheet metal fastening is critical.

Specification Summary & Compliance

These tapping screws feature precise 0.19" thread diameter with 12 threads per inch and 3/4" length for consistent performance. The thread forming design follows industry standards for A/AB tapping screw types, ensuring proper thread engagement in sheet metal applications. Manufacturing specifications include 0.423" flange diameter and compatibility with No. 21 drill bit (0.159" diameter) for optimal hole preparation. The products are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting the latest environmental and safety standards for industrial fasteners.